:root {
    --primary: #0f2b46;
    --primary-light: #1a4468;
    --accent: #2b7de9;
    --accent-light: #5b9df5;
    --accent-gradient: linear-gradient(135deg, #1a5bb5 0%, #2b7de9 40%, #4a9af5 100%);
    --gold: #d4a853;
    --gold-light: #e8c97a;
    --bg: #f8fafc;
    --bg-alt: #eef2f7;
    --white: #ffffff;
    --text: #1e293b;
    --text-secondary: #475569;
    --text-light: #64748b;
    --border: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow: 0 4px 16px rgba(0, 0, 0, 0.08), 0 2px 6px rgba(0, 0, 0, 0.04);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12), 0 4px 12px rgba(0, 0, 0, 0.06);
    --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.16), 0 8px 20px rgba(0, 0, 0, 0.08);
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 18px;
    --radius-xl: 24px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --font-heading: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
    --font-body: 'PingFang SC', 'Microsoft YaHei', 'Segoe UI', sans-serif;
    --max-width: 1200px;
    --header-height: 72px;
    --header-height-mobile: 60px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    color: var(--text);
    background-color: var(--bg);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* ============ HEADER & NAVIGATION ============ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    transition: all var(--transition);
    height: var(--header-height);
}

.header.scrolled {
    box-shadow: var(--shadow);
    background: rgba(255, 255, 255, 0.96);
    border-bottom-color: rgba(0, 0, 0, 0.08);
}

.header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    gap: 20px;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    flex-shrink: 0;
    z-index: 1001;
}

.logo-icon {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
    transition: transform var(--transition-fast);
}
.logo-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}
.logo-area:hover .logo-icon {
    transform: scale(1.05);
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}
.logo-text .company-name {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--primary);
    letter-spacing: 0.5px;
    white-space: nowrap;
}
.logo-text .company-sub {
    font-size: 0.7rem;
    color: var(--text-light);
    letter-spacing: 1.5px;
    text-transform: uppercase;
    white-space: nowrap;
}

/* Desktop Nav */
.nav-desktop {
    display: flex;
    align-items: center;
    gap: 6px;
    list-style: none;
}
.nav-desktop li a {
    display: block;
    padding: 10px 18px;
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    border-radius: 25px;
    transition: all var(--transition-fast);
    white-space: nowrap;
    letter-spacing: 0.3px;
    position: relative;
}
.nav-desktop li a:hover,
.nav-desktop li a.active {
    color: var(--accent);
    background: rgba(43, 125, 233, 0.06);
}
.nav-desktop li a::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 20px;
    height: 2.5px;
    background: var(--accent);
    border-radius: 2px;
    transition: transform var(--transition-fast);
}
.nav-desktop li a:hover::after,
.nav-desktop li a.active::after {
    transform: translateX(-50%) scaleX(1);
}

/* Mobile Menu Button */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1001;
    padding: 8px;
    background: none;
    border: none;
    width: 40px;
    height: 32px;
    justify-content: center;
    align-items: center;
}
.menu-toggle span {
    display: block;
    width: 26px;
    height: 2.5px;
    background: var(--primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
    transform-origin: center;
}
.menu-toggle.active span:nth-child(1) {
    transform: translateY(7.5px) rotate(45deg);
}
.menu-toggle.active span:nth-child(2) {
    opacity: 0;
    transform: scaleX(0);
}
.menu-toggle.active span:nth-child(3) {
    transform: translateY(-7.5px) rotate(-45deg);
}

/* Mobile Nav Overlay */
.mobile-nav-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 999;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0;
    transition: opacity var(--transition);
}
.mobile-nav-overlay.show {
    display: block;
    opacity: 1;
}

.mobile-nav {
    position: fixed;
    top: 0;
    right: -320px;
    width: 300px;
    max-width: 82vw;
    height: 100vh;
    height: 100dvh;
    z-index: 1000;
    background: var(--white);
    padding: 90px 28px 40px;
    transition: right var(--transition);
    box-shadow: var(--shadow-xl);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.mobile-nav.show {
    right: 0;
}
.mobile-nav a {
    display: block;
    padding: 14px 18px;
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    font-size: 1.05rem;
    border-radius: var(--radius);
    transition: all var(--transition-fast);
    letter-spacing: 0.3px;
}
.mobile-nav a:hover,
.mobile-nav a.active {
    background: rgba(43, 125, 233, 0.08);
    color: var(--accent);
}
.mobile-nav .nav-cta-mobile {
    margin-top: 16px;
    padding: 14px 18px;
    text-align: center;
    background: var(--accent-gradient);
    color: #fff !important;
    border-radius: 25px;
    font-weight: 600;
    letter-spacing: 0.5px;
}

/* ============ HERO SECTION ============ */
.hero {
    margin-top: var(--header-height);
    background: linear-gradient(160deg, #091a2e 0%, #0f2b46 30%, #132f4c 55%, #0a1f35 100%);
    position: relative;
    overflow: hidden;
    min-height: 560px;
    display: flex;
    align-items: center;
    padding: 60px 0;
}
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 25% 30%, rgba(43, 125, 233, 0.2) 0%, transparent 60%),
        radial-gradient(ellipse at 72% 65%, rgba(74, 154, 245, 0.15) 0%, transparent 55%),
        radial-gradient(ellipse at 50% 80%, rgba(212, 168, 83, 0.08) 0%, transparent 50%);
    pointer-events: none;
}
.hero-grid-bg {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    mask-image: radial-gradient(ellipse at center, black 40%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 70%);
}
.hero-dots {
    position: absolute;
    pointer-events: none;
}
.hero-dots.dot-1 {
    top: 15%;
    right: 8%;
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.12) 2px, transparent 2px);
    background-size: 16px 16px;
}
.hero-dots.dot-2 {
    bottom: 20%;
    left: 5%;
    width: 70px;
    height: 70px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.08) 1.5px, transparent 1.5px);
    background-size: 14px 14px;
}
.hero-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 28px;
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
    width: 100%;
}
.hero-content {
    color: #fff;
}
.hero-badge {
    display: inline-block;
    padding: 7px 16px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 25px;
    font-size: 0.85rem;
    letter-spacing: 1.5px;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 20px;
    backdrop-filter: blur(4px);
}
.hero-content h1 {
    font-family: var(--font-heading);
    font-size: 2.8rem;
    font-weight: 700;
    line-height: 1.25;
    margin-bottom: 16px;
    letter-spacing: 0.5px;
    background: linear-gradient(135deg, #ffffff 0%, #d0e0f5 50%, #a8c8f0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-content .hero-subtitle {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 28px;
    line-height: 1.6;
    max-width: 480px;
}
.hero-btns {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}
.btn {
    display: inline-block;
    padding: 13px 28px;
    border-radius: 28px;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    letter-spacing: 0.4px;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    font-family: var(--font-body);
    white-space: nowrap;
}
.btn-primary {
    background: var(--accent-gradient);
    color: #fff;
    box-shadow: 0 6px 20px rgba(43, 125, 233, 0.4);
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(43, 125, 233, 0.5);
}
.btn-outline {
    background: transparent;
    color: #fff;
    border: 1.5px solid rgba(255, 255, 255, 0.35);
}
.btn-outline:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.6);
}
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}
.hero-card-stack {
    position: relative;
    width: 320px;
    height: 380px;
}
.hero-card {
    position: absolute;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.13);
    border-radius: var(--radius-lg);
    padding: 24px;
    backdrop-filter: blur(12px);
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.hero-card.card-1 {
    top: 20px;
    left: 20px;
    width: 200px;
    height: 170px;
    z-index: 3;
    background: rgba(255, 255, 255, 0.09);
    border-color: rgba(255, 255, 255, 0.18);
}
.hero-card.card-2 {
    top: 110px;
    left: 80px;
    width: 190px;
    height: 155px;
    z-index: 2;
}
.hero-card.card-3 {
    top: 190px;
    left: 30px;
    width: 180px;
    height: 140px;
    z-index: 1;
    opacity: 0.75;
}
.hero-card .card-icon-row {
    display: flex;
    gap: 6px;
}
.hero-card .card-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
}
.hero-card .card-dot.dot-blue {
    background: #5b9df5;
}
.hero-card .card-dot.dot-gold {
    background: #e8c97a;
}
.hero-card .card-line {
    height: 3px;
    border-radius: 2px;
    background: rgba(255, 255, 255, 0.2);
    width: 60%;
}
.hero-card .card-line.short {
    width: 35%;
}
.hero-card .card-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 3px solid rgba(255, 255, 255, 0.4);
    align-self: flex-end;
    margin-top: auto;
}

/* ============ SECTION STYLES ============ */
.section {
    padding: 80px 0;
}
.section-alt {
    background: var(--bg-alt);
}
.section-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 28px;
}
.section-label {
    display: inline-block;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 10px;
    padding: 5px 14px;
    background: rgba(43, 125, 233, 0.07);
    border-radius: 20px;
}
.section-title {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 14px;
    letter-spacing: 0.3px;
    line-height: 1.3;
}
.section-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    max-width: 600px;
    line-height: 1.7;
    margin-bottom: 40px;
}
.text-center {
    text-align: center;
}
.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

/* ============ ABOUT SECTION ============ */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}
.about-image-area {
    position: relative;
    display: flex;
    justify-content: center;
}
.about-image-placeholder {
    width: 100%;
    max-width: 460px;
    aspect-ratio: 4/3;
    background: linear-gradient(145deg, #e8eef5 0%, #dce4f0 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}
.about-image-placeholder::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 30% 40%, rgba(43, 125, 233, 0.12) 0%, transparent 50%),
        radial-gradient(circle at 70% 60%, rgba(212, 168, 83, 0.08) 0%, transparent 50%);
}
.about-image-icon {
    font-size: 6rem;
    position: relative;
    z-index: 1;
    filter: grayscale(15%);
}
.about-accent-box {
    position: absolute;
    bottom: -20px;
    right: -15px;
    background: var(--accent-gradient);
    color: #fff;
    padding: 16px 22px;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: var(--shadow-lg);
    letter-spacing: 0.4px;
}
.about-content .stat-row {
    display: flex;
    gap: 24px;
    margin-top: 24px;
    flex-wrap: wrap;
}
.stat-item {
    text-align: center;
    background: var(--white);
    padding: 18px 20px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    min-width: 90px;
    flex: 1;
}
.stat-item .stat-num {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent);
    font-family: var(--font-heading);
    letter-spacing: 0.5px;
}
.stat-item .stat-label {
    font-size: 0.8rem;
    color: var(--text-light);
    margin-top: 2px;
}

/* ============ SERVICES SECTION ============ */
.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.service-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 32px 26px;
    box-shadow: var(--shadow);
    transition: all var(--transition);
    border: 1px solid transparent;
    position: relative;
    overflow: hidden;
    cursor: default;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.service-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(43, 125, 233, 0.15);
}
.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--accent-gradient);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
    border-radius: 0 0 4px 4px;
}
.service-card:hover::before {
    transform: scaleX(1);
}
.service-icon {
    font-size: 2.6rem;
    display: inline-block;
    width: 60px;
    height: 60px;
    line-height: 60px;
    text-align: center;
    background: rgba(43, 125, 233, 0.07);
    border-radius: var(--radius);
    flex-shrink: 0;
    transition: all var(--transition-fast);
}
.service-card:hover .service-icon {
    background: rgba(43, 125, 233, 0.13);
    transform: scale(1.08);
}
.service-card h3 {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 0.3px;
}
.service-card p {
    font-size: 0.93rem;
    color: var(--text-secondary);
    line-height: 1.6;
}
.service-tag {
    display: inline-block;
    padding: 5px 12px;
    font-size: 0.75rem;
    border-radius: 15px;
    background: rgba(43, 125, 233, 0.06);
    color: var(--accent);
    font-weight: 500;
    letter-spacing: 0.5px;
    align-self: flex-start;
}

/* ============ QR CODE SECTION ============ */
.qr-section {
    background: linear-gradient(180deg, #f8fafc 0%, #eef2f7 50%, #f8fafc 100%);
    padding: 70px 0;
}
.qr-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 700px;
    margin: 0 auto;
}
.qr-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 32px 24px 24px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: all var(--transition);
    border: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}
.qr-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-3px);
    border-color: rgba(43, 125, 233, 0.2);
}
.qr-card h3 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--primary);
    letter-spacing: 0.4px;
}
.qr-card .qr-label-tag {
    display: inline-block;
    padding: 5px 14px;
    font-size: 0.78rem;
    border-radius: 15px;
    font-weight: 600;
    letter-spacing: 0.8px;
    background: rgba(212, 168, 83, 0.12);
    color: #8b6914;
}
.qr-placeholder {
    width: 180px;
    height: 180px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    background: #fafbfc;
    border: 2px solid #d0d7e2;
    transition: all var(--transition);
    overflow: hidden;
}
.qr-card:hover .qr-placeholder {
    border-color: var(--accent-light);
    background: #f8faff;
}
.qr-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
    border-radius: var(--radius);
}
.qr-hint {
    font-size: 0.8rem;
    color: var(--text-light);
    letter-spacing: 0.3px;
}
.qr-hint svg {
    display: inline-block;
    vertical-align: -2px;
    margin-right: 3px;
}

/* ============ CONTACT SECTION ============ */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}
.contact-info-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 18px;
}
.contact-info-list li {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    font-size: 0.98rem;
    color: var(--text-secondary);
}
.contact-icon {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(43, 125, 233, 0.07);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
    transition: all var(--transition-fast);
}
.contact-info-list li:hover .contact-icon {
    background: rgba(43, 125, 233, 0.14);
    transform: scale(1.06);
}
.contact-map-placeholder {
    width: 100%;
    max-width: 520px;
    height: auto;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    background: #f0f4f8;
}
.contact-map-placeholder img {
    display: block;
    width: 100%;
    height: auto;
    object-fit: cover;
}

/* ============ FOOTER ============ */
.footer {
    background: var(--primary);
    color: rgba(255, 255, 255, 0.75);
    padding: 40px 0 28px;
    font-size: 0.9rem;
}
.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 28px;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 30px;
}
.footer-col h4 {
    color: #fff;
    font-family: var(--font-heading);
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
    font-size: 1rem;
}
.footer-col p,
.footer-col a {
    color: rgba(255, 255, 255, 0.65);
    text-decoration: none;
    display: block;
    line-height: 1.8;
    transition: color var(--transition-fast);
}
.footer-col a:hover {
    color: #fff;
}
.footer-bottom {
    max-width: var(--max-width);
    margin: 20px auto 0;
    padding: 18px 28px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    text-align: center;
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 0.4px;
}
.footer-bottom a {
    color: rgba(255, 255, 255, 0.5);
    text-decoration: none;
    transition: color var(--transition-fast);
}
.footer-bottom a:hover {
    color: #fff;
}

/* ============ BACK TO TOP ============ */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: var(--accent-gradient);
    color: #fff;
    border: none;
    cursor: pointer;
    z-index: 900;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    transition: all var(--transition);
    opacity: 0;
    pointer-events: none;
    transform: translateY(15px);
}
.back-to-top.show {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}
.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

/* ============ ANIMATIONS ============ */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
    .hero-inner {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }
    .hero-content .hero-subtitle {
        margin-left: auto;
        margin-right: auto;
        max-width: 500px;
    }
    .hero-btns {
        justify-content: center;
    }
    .hero-visual {
        display: none;
    }
    .hero-content h1 {
        font-size: 2.3rem;
    }
    .about-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .about-image-area {
        order: -1;
    }
    .about-image-placeholder {
        max-width: 350px;
    }
    .about-accent-box {
        bottom: -10px;
        right: 0;
        font-size: 0.8rem;
        padding: 12px 16px;
    }
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    .contact-grid {
        grid-template-columns: 1fr;
    }
    .footer-inner {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
    .section-title {
        font-size: 1.8rem;
    }
}

@media (max-width: 768px) {
    .header {
        height: var(--header-height-mobile);
    }
    html {
        scroll-padding-top: var(--header-height-mobile);
    }
    .hero {
        margin-top: var(--header-height-mobile);
        min-height: 420px;
        padding: 40px 0;
    }
    .nav-desktop {
        display: none;
    }
    .menu-toggle {
        display: flex;
    }
    .hero-content h1 {
        font-size: 1.9rem;
    }
    .hero-content .hero-subtitle {
        font-size: 1rem;
    }
    .btn {
        padding: 11px 22px;
        font-size: 0.88rem;
    }
    .services-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .qr-grid {
        grid-template-columns: 1fr;
        gap: 20px;
        max-width: 350px;
    }
    .qr-placeholder {
        width: 150px;
        height: 150px;
    }
    .section {
        padding: 50px 0;
    }
    .section-title {
        font-size: 1.55rem;
    }
    .section-desc {
        font-size: 0.95rem;
        margin-bottom: 28px;
    }
    .about-image-placeholder {
        max-width: 280px;
    }
    .about-accent-box {
        bottom: -8px;
        right: -5px;
        font-size: 0.75rem;
        padding: 10px 14px;
    }
    .stat-row {
        gap: 12px;
    }
    .stat-item {
        padding: 14px 12px;
        min-width: 70px;
    }
    .stat-item .stat-num {
        font-size: 1.4rem;
    }
    .footer-inner {
        grid-template-columns: 1fr;
        gap: 18px;
    }
    .back-to-top {
        bottom: 20px;
        right: 16px;
        width: 40px;
        height: 40px;
        font-size: 1.1rem;
    }
    .contact-icon {
        width: 38px;
        height: 38px;
        font-size: 1.1rem;
    }
    .contact-info-list li {
        font-size: 0.9rem;
        gap: 10px;
    }
    .service-card {
        padding: 24px 18px;
    }
    .service-icon {
        font-size: 2.2rem;
        width: 48px;
        height: 48px;
        line-height: 48px;
    }
}

@media (max-width: 480px) {
    .header-inner {
        padding: 0 16px;
    }
    .section-inner {
        padding: 0 16px;
    }
    .logo-text .company-name {
        font-size: 1rem;
    }
    .logo-icon {
        width: 36px;
        height: 36px;
    }
    .hero-content h1 {
        font-size: 1.55rem;
    }
    .hero {
        min-height: 360px;
        padding: 30px 0;
    }
    .hero-btns {
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }
    .btn {
        width: 100%;
        text-align: center;
        max-width: 260px;
    }
    .about-accent-box {
        position: static;
        margin-top: 12px;
        text-align: center;
        border-radius: var(--radius);
    }
    .about-image-area {
        flex-direction: column;
        align-items: center;
    }
    .qr-placeholder {
        width: 130px;
        height: 130px;
    }
    .section-title {
        font-size: 1.35rem;
    }
    .footer-inner {
        padding: 0 16px;
    }
    .footer-bottom {
        padding: 14px 16px 0;
    }
}